Automobile brake pad bilateral chamfering machine

Abstract

The invention relates to the technical field of brake pad machining equipment, in particular to an automobile brake pad double-side chamfering machine which comprises a moving seat, a moving mechanism driving the moving seat to move, a mounting frame mounted on the moving seat, a locking piece mounted on the mounting frame and used for butt joint of brake pads, and supports arranged on the two sides of the moving seat. According to the brake pad polishing device, a traditional brake pad polishing mode is improved, a worker only needs to place a plurality of brake pads in the locking piece in sequence, the brake pads make contact with the polishing part in sequence for polishing through movement of the moving seat, the polishing efficiency is improved, and the polishing efficiency is improved. And meanwhile, after a certain amount of brake pads are polished, different polishing parts are rotated to the polishing positions to polish the brake pads through movement of the movable base and cooperation of the linkage part, so that the time consumed by workers for replacing polishing materials is shortened, and the efficiency of polishing the brake pads in a chamfering mode is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of brake pad processing equipment, and particularly to a double-sided chamfering machine for automotive brake pads. Background Art

[0002] Brake pads are the most critical safety components in an automotive braking system, mainly composed of structures such as a friction material layer, a heat insulation layer, an adhesive layer, and a back plate.

[0003] After the brake pads are prepared, considering that the brake pads will withstand high-frequency vibrations and thermal stresses during braking, the right-angled edges are prone to cracking or chipping due to stress concentration. At the same time, the right-angled edges may generate high-frequency vibrations when contacting the brake disc, causing sharp noises. Therefore, it is necessary to perform cutting or grinding on both sides of the friction material layer at a certain angle. Traditional chamfering methods all use grinding equipment to grind both sides of the friction material layer. During the grinding process, the grinding material will wear the outer particle layer due to friction. Therefore, it is necessary to frequently replace the grinding material, resulting in a reduction in the chamfering and grinding efficiency of the brake pads. Summary of the Invention

[0004] The purpose of the present invention is to provide a double-sided chamfering machine for automotive brake pads to solve the problem of long grinding time and low efficiency caused by the need to replace the grinding material during the grinding of brake pads as mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A double-sided chamfering machine for automotive brake pads includes a moving seat and a moving mechanism for driving the moving seat to move. It also includes a mounting frame installed on the moving seat. A locking member for docking the brake pads is installed on the mounting frame, and brackets are provided on both sides of the moving seat. An adjusting ring is fixed on the bracket. A contact notch is opened near the bracket on the adjusting ring. A support plate is fixed on the bracket, and a rotating frame is rotatably installed on the support plate. A grinding part that fits with the adjusting ring is installed on the rotating frame. A driving member for driving the grinding part is installed on the adjusting ring, and a linkage part is provided at the bottom of the moving seat. The linkage part is docked with the two rotating frames and drives the rotating frames to rotate through the linkage part.

[0006] Preferably, three grinding parts are provided and are equally angularly distributed on the outside of the rotating frame. The grinding part includes a mounting plate fixed to the rotating frame. Sliding openings are opened at both ends of the mounting plate, and a mounting block is fixed on the mounting plate. Two connecting columns are slidably inserted at both ends of the mounting block. End plates are fixed to the outer ends of the two connecting columns. A docking member for docking with the driving member is rotatably inserted inside the end plate. Grinding belts are sleeved on the outside of the two docking members, and a compression spring for squeezing the end plate to move outward is sleeved on the outside of the connecting column.

[0007] Preferably, the docking member includes a driving rod rotatably docked with the end plate through a bearing. A driving wheel is fixed on the outer side of the driving rod, and the grinding belt is sleeved on the outer side of the driving wheel. An I-shaped ring that fits against the inner wall of the sliding opening is fixed on the outer side of the driving rod. The driving rod fits against the inner walls of the adjusting ring and the contact notch. A docking gear adapted to the driving member is fixed on the outer side of one of the driving rods.

[0008] Preferably, a roller that fits against the outer side of the adjusting ring is fixed at the outer end of the driving rod.

[0009] Preferably, the driving member includes a driving motor fixed on the outer side of the adjusting ring through a motor bracket. A driving gear adapted to the docking gear is fixed at the output end of the driving motor.

[0010] Preferably, the linkage portion includes a toothed plate fixed to the bottom of the moving seat and a linkage gear disposed at the bottom of the moving seat. A docking shaft is fixed inside the linkage gear, and both ends of the docking shaft are fixed to the rotating shafts of two rotating frames through universal joints. The number of teeth of the toothed plate is one-third of the number of teeth of the linkage gear, and an angle positioning member is disposed outside the linkage gear.

[0011] Preferably, the angle positioning member includes an electric push rod. A U-shaped frame is fixed at the top of the electric push rod. Three tapered openings are equally angled on both sides of the linkage gear, and both ends of the U-shaped frame are inserted into the tapered openings and fit against their inner walls.

[0012] Preferably, a support tube is fixed on the support plate. The support tube is rotatably sleeved on the rotating shaft of the rotating frame and abuts against the inner wall of the rotating frame.

[0013] Preferably, the locking member includes a connecting rod fixed to the mounting frame. A pressing plate is slidably sleeved on the outer side of the connecting rod. A limiting block is fixed at the top of the connecting rod. The brake pad is placed between the mounting frame and the pressing plate. An inclined block is fixed at the outer end of the pressing plate. A pressing spring that abuts against the pressing plate is sleeved on the outer side of the connecting rod. A convex block adapted to the groove on the brake pad is fixed on the mounting frame.

[0014] Preferably, a cavity is formed in the moving seat. A plug rod that slidably penetrates through to the inside of the cavity is fixed at the bottom of the mounting frame. An end block is fixed at the bottom of the plug rod. A pushing spring that pushes the plug rod downward is sleeved on the outer side of the plug rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The present invention improves the traditional method of grinding brake pads. Personnel only need to place multiple brake pads into the locking member in sequence. Through the movement of the moving seat, the brake pads are successively brought into contact with the grinding part for grinding. At the same time, after grinding a certain number of brake pads, through the movement of the moving seat and in cooperation with the linkage part, different grinding parts are rotated to the grinding position to grind the brake pads, thereby shortening the time consumed by personnel in replacing the grinding material and improving the efficiency of chamfer grinding of brake pads. Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a rear view of a partial cross-section of the present invention; Figure 3 It is a front view of a partial cross-section of the present invention; Figure 4 It is a schematic diagram of the state where the grinding part of the present invention is in contact with the brake pad; Figure 5 It is a schematic diagram of the positional relationship between the linkage part and the moving seat of the present invention; Figure 6 is Figure 5 an enlarged view of part A in Figure 7 It is a schematic diagram of the connection between three grinding parts and the rotating frame of the present invention; Figure 8 It is a schematic diagram of the connection between the support plate and the rotating frame of the present invention; Figure 9 It is a schematic diagram of the positional relationship between the adjusting ring, the contact notch and the driving rod of the present invention; Figure 10 It is an exploded view of the locking member and the moving seat of the present invention.

[0017] In the figure: 1. Moving seat; 2. Mounting frame; 3. Locking member; 4. Bracket; 5. Adjusting ring; 6. Contact notch; 7. Support plate; 8. Rotating frame; 9. Grinding part; 10. Driving part; 11. Linkage part; 12. Mounting plate; 13. Slide opening; 14. Mounting block; 15. Connecting column; 16. End plate; 17. Docking member; 18. Grinding belt; 19. Extrusion spring; 20. Driving rod; 21. Driving wheel; 22. I-shaped ring; 23. Docking gear; 24. Roller; 25. Driving motor; 26. Driving gear; 27. Tooth plate; 28. Linkage gear; 29. Docking shaft; 30. Angle positioning member; 31. Electric push rod; 32. U-shaped frame; 33. Conical opening; 34. Support tube; 35. Pushing spring; 36. Connecting rod; 37. Pressing plate; 38. Compression spring; 39. Cavity; 40. Plug rod. Detailed Embodiment

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1: Please refer to Figure 1 - Figure 4 and Figure 9 , a double-sided chamfering machine for automobile brake pads in the figure, including a moving seat 1 and a moving mechanism for driving the moving seat 1 to move, further including a mounting frame 2 installed on the moving seat 1, a locking member 3 for butt-jointing the brake pads installed on the mounting frame 2, and brackets 4 arranged on both sides of the moving seat 1. An adjusting ring 5 is fixed on the bracket 4. A contact notch 6 is opened near the bracket 4 on the adjusting ring 5. A support plate 7 is fixed on the bracket 4. A rotating frame 8 is rotatably installed on the support plate 7. A grinding part 9 that fits with the adjusting ring 5 is installed on the rotating frame 8. A driving member 10 for driving the grinding part 9 is installed on the adjusting ring 5, and a linkage part 11 is arranged at the bottom of the moving seat 1. The linkage part 11 is docked with the two rotating frames 8 and drives the rotating frame 8 to rotate through the linkage part 11; In this solution, the moving mechanism can be, but is not limited to, an existing screw drive mechanism, which drives the moving seat 1 to move horizontally back and forth, so that several brake pads positioned by the locking member 3 on the moving seat 1 are successively in contact with the grinding part 9, and the double sides of the brake pads are chamfered; During the movement of the moving seat 1, the driving member 10 will be triggered to drive the corresponding equal-angle rotation of the two rotating frames 8, so that the corresponding grinding part 9 rotates, replacing the worn grinding part 9. Therefore, when replacing the grinding material, there is no need to stop the machine operation, improving the chamfering and grinding efficiency of the brake pads.

[0020] Further, refer to Figure 4 - Figure 9 , three grinding parts 9 are provided and are equally angularly distributed on the outside of the rotating frame 8. The grinding part 9 includes a mounting plate 12 fixed to the rotating frame 8. Slide openings 13 are opened at both ends of the mounting plate 12. A mounting block 14 is fixed on the mounting plate 12. Two connecting columns 15 are slidably inserted at both ends of the mounting block 14. End plates 16 are fixed to the outer ends of the two connecting columns 15. A docking member 17 that docks with the driving member 10 is rotatably inserted inside the end plate 16. A grinding belt 18 is sleeved outside the two docking members 17. An extrusion spring 19 for extruding the end plate 16 to move outward is sleeved outside the connecting column 15; Among them, the docking part 17 includes a driving rod 20 rotatably docked with the end plate 16 through a bearing. A driving wheel 21 is fixed on the outer side of the driving rod 20, and a retaining ring is fixed on the outer side of the driving wheel 21, which can prevent the polishing belt 18 from shifting during rotation. The polishing belt 18 is sleeved on the outer side of the driving wheel 21. An I-shaped ring 22 that fits against the inner wall of the sliding opening 13 is fixed on the outer side of the driving rod 20. The driving rod 20 fits against the inner walls of the adjusting ring 5 and the contact notch 6. A docking gear 23 adapted to the driving member 10 is fixed on the outer side of one of the driving rods 20.

[0021] Meanwhile, referring to Figure 4 , Figure 7 and Figure 8 , the driving member 10 includes a driving motor 25 fixed to the outer side of the adjusting ring 5 through a motor bracket. A driving gear 26 adapted to the docking gear 23 is fixed to the output end of the driving motor 25.

[0022] In this solution, the principle of the polishing part 9 chamfering both sides of the brake pad: The compression spring 19 is used to squeeze the two end plates 16 to move outward, so that the driving wheel 21 on the driving rod 20 moves outward, making the polishing belt 18 tense. Then, the driving motor 25 in the driving member 10 drives the driving gear 26 to rotate, so that the engaged docking gear 23 rotates, making the driving wheel 21 drive the polishing belt 18 to start rotating. After contacting the side of the brake pad, the chamfering operation can be realized.

[0023] Furthermore, referring to Figure 2 , Figure 5 and Figure 6 , the linkage part 11 includes a toothed plate 27 fixed to the bottom of the moving seat 1 and a linkage gear 28 arranged at the bottom of the moving seat 1. A docking shaft 29 is fixed inside the linkage gear 28. Both ends of the docking shaft 29 are fixed to the rotating shafts of the two rotating frames 8 through universal joints. The number of teeth of the toothed plate 27 is one-third of the number of teeth of the linkage gear 28. An angle positioning member 30 is arranged on the outer side of the linkage gear 28; In this solution, during the movement of the moving seat 1, it will drive the corresponding toothed plate 27 to contact the linkage gear 28, and drive the linkage gear 28 to rotate 120°. Thus, through the universal joint, the corresponding rotating frame 8 is driven to rotate 120°, replacing the new polishing part 9 and moving the worn polishing part 9 to other areas, which is convenient for personnel to replace the polishing belt 18.

[0024] It should also be noted that referring to Figure 1 and Figure 2, each grinding part 9 can grind two brake pads and then be replaced. At the same time, the number of toothed plates 27 can be set to two. After grinding two brake pads each time, the toothed plate 27 meshes with the linkage gear 28. Therefore, the two toothed plates 27 can make the three grinding parts 9 rotate to the grinding area in turn. At the same time, the moving seat 1 can reciprocate to shorten the moving range of the moving seat 1.

[0025] Further, referring to Figure 1 and Figure 2 as well as Figure 10 , the locking member 3 includes a connecting rod 36 fixed to the mounting bracket 2. A pressing plate 37 is slidably sleeved on the outer side of the connecting rod 36. A limiting block is fixed to the top of the connecting rod 36. The brake pad is placed between the mounting bracket 2 and the pressing plate 37. An inclined block is fixed to the outer end of the pressing plate 37. A pressing spring 38 that abuts against the pressing plate 37 is sleeved on the outer side of the connecting rod 36. A convex block adapted to the groove on the brake pad is fixed to the mounting bracket 2. The design of the convex block can limit the brake pad. The design of the inclined block facilitates the operator to directly push the brake pad in from one side; Among them, in order to consider that when the brake pad is just ground, it is not easy to abut against the outer side of the grinding belt 18. A cavity 39 is opened in the moving seat 1. A plug rod 40 is fixed to the bottom of the mounting bracket 2 and slidably penetrates into the cavity 39. An end block is fixed to the bottom of the plug rod 40. A pushing spring 35 that pushes the plug rod 40 downward is sleeved on the outer side of the plug rod 40.

[0026] In this solution, the pressing spring 38 is used to make the pressing plate 37 abut against the outer side of the brake pad. When moving to fit with the outer side of the grinding belt 18, the brake pad will be squeezed and lifted. Under the action of the pushing spring 35, the mounting bracket 2 drives the brake pad to move downward and closely fit with the outer side of the grinding belt 18, and finally completes the grinding of the side chamfer.

[0027] In this solution, the specific operation process for efficiently chamfering the brake pad; includes the following steps: The first step is that the operator first installs multiple brake pads into multiple locking members 3 in sequence; The second step is to drive the moving seat 1 to move through the moving mechanism, and move the brake pads to the grinding area in sequence to contact the grinding part 9; The third step is that after grinding a certain number of brake pads, the movement of the moving seat 1 will make the toothed plate 27 mesh with the linkage gear 28 for transmission, so that the rotating frame 8 moves a new grinding part 9 to the contact notch 6 and starts to grind the new brake pad; The fourth step is that the old grinding part 9 moves to other areas through the rotating frame 8. At this time, the driving rod 20 in the grinding part 9 moves away from the contact notch 6 and moves to contact the inner wall of the adjusting ring 5, so that the two end plates 16 retract and no longer squeeze the grinding belt 18, which is convenient for replacing the grinding belt 18; Step 5: Repeat steps 2 to 4, so that the grinding material can be replaced without stopping the machine, thereby improving the efficiency of double-sided chamfering of the brake pad.

[0028] In this solution, when the driving rod 20 moves in the adjusting ring 5, the distance between the two end plates 16 is smaller than the distance between the two end plates 16 when the driving rod 20 moves in the contact notch 6, so that the grinding belt 18, which is originally in a taut state when grinding in the contact notch 6, becomes a loose grinding belt 18 when moving into the adjusting ring 5, which is convenient for personnel to replace the grinding belt 18; At the same time, in the present solution, in order to facilitate the movement of the driving rod 20 in the adjusting ring 5 and the contact recess 6, a roller 24 that fits with the outer side of the adjusting ring 5 is fixed at the outer end of the driving rod 20. In order to make the rotating frame 8 more stable during rotation adjustment, a support tube 34 is fixed on the support plate 7. The support tube 34 is rotatably sleeved on the outer side of the rotating shaft of the rotating frame 8 and abuts against the inner wall of the rotating frame 8.

[0029] Example 2: Please refer to Figure 5 as well as Figure 6 This embodiment further explains the first embodiment, and the difference lies in the development of one specific implementation of the angle positioning member 30.

[0030] Specifically, the angle positioning member 30 includes an electric push rod 31, a U-shaped frame 32 is fixed on the top of the electric push rod 31, three tapered openings 33 are opened at equal angles on both sides of the linkage gear 28, and the two ends of the U-shaped frame 32 are inserted into the tapered openings 33 and fit with the inner walls. Each time the tooth plate 27 and the linkage gear 28 are meshed and transmitted, the electric push rod 31 will drive the U-shaped frame 32 to move down and disengage from the tapered openings 33.

[0031] In this solution, after the linkage gear 28 is rotated and adjusted by the toothed plate 27 each time, in order to enable the linkage gear 28 to maintain the adjustment accuracy and enable the grinding portion 9 to stably fit the side of the brake pad, the U-shaped frame 32 is driven to push into the conical opening 33 through the lifting of the electric push rod 31, thereby ensuring that the adjusted linkage gear 28 rotates 120° each time, so that the three grinding portions 9 can rotate in turn into the contact recess 6, thereby improving the contact accuracy during grinding.

[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automotive brake pad double-sided chamfering machine, comprising: A moving seat (1) and a moving mechanism for driving the moving seat (1) to move; It is characterized in that it further comprises: A mounting frame (2) mounted on the moving seat (1), a locking member (3) for butt-jointing brake pads is mounted on the mounting frame (2), and; Brackets (4) arranged on both sides of the moving seat (1), an adjusting ring (5) is fixed on the brackets (4), a contact notch (6) is formed near the brackets (4) on the adjusting ring (5), a support plate (7) is fixed on the brackets (4), and a rotating frame (8) is rotatably mounted on the support plate (7). A grinding part (9) that fits with the adjusting ring (5) is mounted on the rotating frame (8), and a driving member (10) for driving the grinding part (9) is mounted on the adjusting ring (5), and; A linkage part (11) arranged at the bottom of the moving seat (1), the linkage part (11) is docked with the two rotating frames (8), and drives the rotating frame (8) to rotate through the linkage part (11).

2. The double-sided chamfering machine for automotive brake pads according to claim 1, wherein: There are three grinding parts (9), and they are evenly distributed on the outer side of the rotating frame (8). The grinding part (9) includes a mounting plate (12) fixed to the rotating frame (8). Sliding openings (13) are formed at both ends of the mounting plate (12), and a mounting block (14) is fixed on the mounting plate (12). Two connecting columns (15) are slidably inserted at both ends of the mounting block (14). End plates (16) are fixed to the outer ends of the two connecting columns (15). A docking member (17) that is rotatably inserted and docked with the driving member (10) is rotatably inserted into the end plates (16). A grinding belt (18) is sleeved on the outer sides of the two docking members (17). A compression spring (19) for pressing the end plate (16) to move outward is sleeved on the outer side of the connecting column (15).

3. The double-sided chamfering machine for automotive brake pads according to claim 2, wherein: The docking member (17) includes a driving rod (20) rotatably docked with the end plate (16) through a bearing. A driving wheel (21) is fixed on the outer side of the driving rod (20), and the grinding belt (18) is sleeved on the outer side of the driving wheel (21). An I-shaped ring (22) that fits with the inner wall of the sliding opening (13) is fixed on the outer side of the driving rod (20). The driving rod (20) fits with the inner wall of the adjusting ring (5) and the contact notch (6). A docking gear (23) adapted to the driving member (10) is fixed on the outer side of one of the driving rods (20).

4. The bilateral chamfering machine for automotive brake pads according to claim 3, characterized in that: A roller (24) that fits with the outer side of the adjusting ring (5) is fixed to the outer end of the driving rod (20).

5. The double-side chamfering machine for automotive brake pads according to claim 3, wherein: The driving member (10) includes a driving motor (25) fixed to the outer side of the adjusting ring (5) through a motor bracket. A driving gear (26) adapted to the docking gear (23) is fixed to the output end of the driving motor (25).

6. The bilateral chamfering machine for automotive brake pads according to claim 1, wherein: The linkage part (11) includes a toothed plate (27) fixed to the bottom of the moving seat (1) and a linkage gear (28) arranged at the bottom of the moving seat (1). A docking shaft (29) is fixed inside the linkage gear (28), and both ends of the docking shaft (29) are fixed to the rotating shafts of two rotating frames (8) through universal joints. The number of teeth of the toothed plate (27) is one-third of the number of teeth of the linkage gear (28), and an angle positioning member (30) is arranged outside the linkage gear (28).

7. The double-sided chamfering machine for automotive brake pads according to claim 6, wherein: The angle positioning member (30) includes an electric push rod (31). The top of the electric push rod (31) is fixed with a U-shaped frame (32). Three tapered openings (33) are equally angled on both sides of the linkage gear (28), and both ends of the U-shaped frame (32) are inserted into the tapered openings (33) and are in contact with the inner walls thereof.

8. A double-sided chamfering machine for automotive brake pads according to claim 1, characterized in that: A support tube (34) is fixed on the support plate (7). The support tube (34) is rotatably sleeved outside the rotating shaft of the rotating frame (8) and abuts against the inner wall of the rotating frame (8).

9. The bilateral chamfering machine for automotive brake pads according to claim 1, wherein: The locking member (3) includes a connecting rod (36) fixed to the mounting frame (2). A pressing plate (37) is slidably sleeved outside the connecting rod (36). A limiting block is fixed to the top of the connecting rod (36). The brake pads are placed between the mounting frame (2) and the pressing plate (37). An inclined block is fixed to the outer end of the pressing plate (37). A compression spring (38) that abuts against the pressing plate (37) is sleeved outside the connecting rod (36). A convex block adapted to the groove on the brake pad is fixed on the mounting frame (2).

10. A bilateral chamfering machine for automotive brake pads according to claim 9, characterized in that: A cavity (39) is formed in the moving seat (1). A plug rod (40) is fixed to the bottom of the mounting frame (2) and slidably penetrates into the cavity (39). An end block is fixed to the bottom of the plug rod (40). A push spring (35) that pushes the plug rod (40) downward is sleeved outside the plug rod (40).

Images